Hydraulic metering and measuring device.



C. F. WALLACE & Nl. F. TIERNAN. I HYDRAULIC METERING AND MEASURING DEVICE.

APPLICATloN FILED Nov.11', 191s.

Patented Nov. 19, 1918,

LDADD;

BETTEN sTnTEs TNTENT emma,

' CHARLES E. WALLACE, or NEW YORK, AND MARTIN E. TIEENAN, 0E NEWRCCNELEE,

' NEW YORK.

HYDRAULIC METERING AND NEASUEING DEVICE.

massant.

Original application led March 26, 1915,

and Measuring Devices, of which'the fol` lowing is a clear, full, and exact description.

rThis invention relates to hydraulic metering and measuring devices, such as disclosed in our application for patent tiled March 26, 1915, Serial No. 17,122, of which this application is a division.' L

Said application discloses apparatuses and i i processes for the treatment or the purifying of water, etc., yand the present invention is restricted to a form of hydraulic metering and measuring device which may be used in connection with' such apparatus, although the invention is not restricted to use in connection with apparatuses and processes speciiically disclosed in the aforesaid application. One of the objects of the present invention is to provide meansfor metering and measuring gases, which is hydraulic in principle and of great simplicity and permanent accuracy. 1n the form of .the invention shown herein, it comprises a fixed orifice associated with a manometer for measuring the gas. or -iiowing substance which Hows past the fixed orifice. Another object of the invention is Ato construct the metering and measuring device in part, at least, of a material which cannot be acted upon by such a gas as chlorin, glass being preferably used in this connection, as it is not acted upon by chlorin which is inert to glass, nor is it volatile. Another object of the invention is to provide an inclosed type of manometer. Another object of the invention is to provide a manometer of such a construction that .a small downward deflection of the liquid therein will cause a com-- paratively large rise of said liquid, whereby the measure of the dropin pressure across the fixed oriiice` and consequently an indication of the amount of gas iiowing through the line, may be ascertained. Another object of the invention is to provide a manometer which will not be affected by an ex-A f Specication of Letters Patent.

Patented Nov. 12, 1918 Serial No. 17,122. Divided and this application led November l, 1916. Serial No. 130,758. i

cessiveiiow of gas. Still another object of the -invention is to provide a simple, practical and elicient hydraulic metering and measuring device for gases or flowing substances.

`These being among the objects of the present invention, the same consists of certain features of construction and combinations of parts to be hereinafter described andthen` claimed with reference to the accompanying drawings illustrating a desirable embodiment ofthe invention, and in whicl1 i Figure 1 is a front elevation of an associated manometer and How-meter, together with concomitant parts;

Fig'.` 2 is an enlarged section on the line 2"-2 Fig. 1 of the manometer; and

Fig. 3 is a section on line 3-3, Fig. 2,

` of the How-meter.

rlhe flow-meter, composedfof parts 120, etc., is located in a break in the line or pipe 68 and the manometer composed of` parts 123, etc., is located in the pipe 68 between the fixed orifice member 120 of the flow,-

meter and anycontrol valve such for in-v stance as disclosed in our aforesaid application, if a control valve is used in connection with the present invention. The two sections of the pipe 68 are joined to a head or body 121, and communicating with the pipe 68 is a branch passage 122 in said head which also communicates with a tube 123, which is closed at its lower end to form a pocket. Extending into this closed tube 123 is a tube 124 which is open from end to end, its upper end being Xed in a bore in the' metal head 121. .The lower end of the inner tube 124 terminates a suitable distance above the `closed lower end of the outer tube 123` so that a body of liquid 125 in the lower end of the outer tube may be caused to move in the inner tube 124C. The cross sections of the two tubes diier materially as the inner tube is considerably 'smaller than the outer tube.

Preferably the said tubes 123 12-1, are composed of glass, because chlorin 'in the presence of most liquids has a very corron sive action on metals, and it is found that glass is about the only practical material to use for containing a liquidy body such as 125, which is not acted upon by chlorin, nor

is volatile, but is inert to gas. By means of the inclosed type of manometer' involved herein, no part of the metal of the head 121 comes in contact with any liquid or acid which may be used. The head 121 is prowith a neck 133 which is inserted into the upper end of the head so that the upper end of the inner glass tube 124 may enter it. The said receptacle 132 and its neck 133 are also preferably composed of vglass for the reasons given.

Before describing the operation of the manometer,` the orifice member 120 and its mounting will be described. This device preferably involves the head 121 of the manometer, although it may be made as a sepa# rate part and comprises in addition to said head and the aforesaid fixed .orifice member 120, a glass chamber or cap 126 which is suitably mounted on the' head 121 so as to 'cover the orifice of said member and provide means for inspecting the orifice at any time without interfering with the flow 0f gas. VThe fixed orifice member 120preferably made of glass,'is located at the end of a short pipe .section 127 which is inserted in the head and connects with thel pipe 68, so

that the described manometer is located in the line ahead of said fixed orice member. There is an annular passage 128'around the pipe section 127 which leadsfrom the fixed orifice member 120 to the outlet 129 to the "'line. From this outlet there extends the before mentioned lateral passage130 ,to the manometer chamber 131, so that the said connection 130 is after the orifice member 120 in the direction in which the flow of gas The operation of the described associated device is as follows: When a iow ofl gas occurs through the fixed orice member'120, there will be a drop in pressure across the orifice thereof, said drop being communicated'to the manometer and being readable from a vscale s back of the glass tubes. The greater pressure on the surface ofthe body of liquid 125 in the outer tube 123 causes the liquid to rise in the smaller tube- 124, and the difference in. cross section of these tubes being comparatively great, a small downward deflection of the liquid in the outer tube will cause a comparatively large rise ofthe liquid in the inner tube. This deflection is a measure of the drop in pressure across the orifice of member 120 .and consequently an indication of the amount of chlorin iowing through the line, being readable from said scale. If for any reason there should be an excessive flow of chlorin tending to blow the liquid out of the lower part of the outer tube 123, the liquid will be forced up through the inner tube 124 and linto the open receptacle or vessel 132 which therefore acts as a safety trap for said liquid. As this receptacle has a capacity greater than the amount of liquid employed,

it will preventJ any of the liquid from coming in contact with the metal parts and being of glass will prevent corrosion. vSaid receptacle will also hold the liquid and prevent it from running down into the lateral passage 130 after thefixed orifice member 120. When the extreme flow of gas ceases, the liquid will flow back into the lower chamber or pocket of the outer glass tube 123. The glass cap or chamber 126 of the How-meter permits any obstruction of the fixed orifice member 120 to be seen, which obstruction might interfere with the accu- `Iacy of the apparatus. The upper chamber 131 of the manometer should be provided with a filling orifice located labove the open upper end of the receptacle 132, said orifice being closed as by a suitable plug 131s.

This enablesthe charge of liquid to be suppliedlto the outer tube 123.

The fixed orifice member 120 may be replaced by a body of porous material, such as carborundum, emery, etc., one of the objects of this material or medium being to offer i -resistance to the gas so that the di'derence 1n pressure of said gas may be measured before and after it passestherethrough. This specifically covered in our co-pending application entitled Process of and apparatus for ascertaining the rate of flow of gases or liquids, and was first disclosed in our cothereof as expressed in the'claims.

What we claim as new is 1. In apparatus of the class described, a

manometer comprising in combination, a head provided with ducts having suitable connection one with the other, twopendent glass tubes carried by said head, one of said tubesv being directly connected with one of said ducts, and the other being located inside of and adapted to dip into a body of liquid in the first said tube, said inner tube being connected at its upper end with the other duct, and a safety trap for said liquid, located between said other duct and said upper end of the inner tube. f

2. In apparatus of the class described, a manometer comprising' in combination, 'a head provided with ductshaving suitable connection one with the other, two glass tubes carriedgby said head, one' of said tubes being directly connected with one of said ducts, and the other being located inside of and adapted to dip into a body of liquid in the rst said tube, said inner tube being connected with the other duct, and a chamber carried by said head and containing a glass pocket projecting thereinto and communicating with said inner tube, said pocketconstituting a safety trap for said liquid.

3. In apparatus of the class described, a manometer comprising in combination two elongated chambers, and means for supporting them substantially in the line of their longitudinal axes one above the other, the lower chamber-being composed of a transparent tube and communicating as herein described at its upper end with the lower end of the other chamber,'and asmaller transparent tube depending from said support and extending down into said lower chamber so as to be adapted to dip into a body of liquid therein, and its upper endcommunieating with said upper chamber.

4. In apparatus of the class described, a, manometer comprising in combination two chambers, means for supporting them one above the other, the lower chamber being composed of a transparent tube and communicating as herein described at its upper end with thelower end of the other chamber, and a smaller transparent tube depending from Said support and extendin down into said lower chamber so as to be a apted to dip into a body of liquid therein, and a pocket proj ecting into said upper chamber and leading to said inner tube, said pocket/constituting a safety trap for said liquid.

5. In apparatus of the class described, a. manometer comprising in combination tWo elongated glass chambers, means for supporting them substantially in the line of their longitudinal axes 011e above the other, the lower chamber communicating as herein described at its upper end with the lower end of the other chamber, and a transparent tube depending from said support and extending down into said lower chamber so as to be adapted to dip into a body of liquid therein, and a glass pocket extending upwardly into said upper chamber and leading to the upper en'd of said inner tube.

6. In 'apparatus of the'class described, a .i

flow-meter comprising, in combination, a. hollow head provided with an inlet for the fluid to be metered, a tube or pipe leading from said inlet and projecting into the chamber formed by said hollow head, a fixed orilice member at the projecting discharge end of said tube, a cap mounted on said head over the oriice of said member, and an outlet leading from said chamber to a point of distribution of said fluid.

Signed at New York, N. Y., this 8 day of November, 1916.

CHARLES F. WALLACE. MARTIN F. TIERNAN.

Witnesses BEATRICE MIRVIS, ABRAHAM BERNSTEIN. 

